<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<div id="header"></div>
		<div class="title">相同的类名，我是16px case</div>
		<div id="case">
			案例展示
		</div>
		<div id="main"></div>
		<div id="footer"></div>
	</body>
</html>
